TC + SC turns itself on? TPS not working right
03-02-2011, 03:35 PM
#32
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Seems like it ...
I am still a little confused as to exactly what the symptoms/problem is?
- if a catastrophic/instantaneous pressure loss occurs, and is detected by TPMS sensors,
SC+TC automatically comes on, right? - I could see this being a PSM 'feature' not a 'bug', i.e it is
intended behavior.
is there another problem, I am having trouble parsing your earlier comments in the thread?
I am still a little confused as to exactly what the symptoms/problem is?
- if a catastrophic/instantaneous pressure loss occurs, and is detected by TPMS sensors,
SC+TC automatically comes on, right? - I could see this being a PSM 'feature' not a 'bug', i.e it is
intended behavior.
is there another problem, I am having trouble parsing your earlier comments in the thread?
03-02-2011, 03:56 PM
#33
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Thread Starter
Hey, I can't always be sober and post stuff here at the same time OK?
1. I think I like my feature where when it gives a flat tire warning for then the TPS stops working (Just click away), but turns on the TC and SC when the tire actually is flat. Real flat, not just low I guess. Again, I am not sure because it happened only once and I was real busy not crashing.
2. I think that this feature as become an issue on another GT3 at Orbit that does not at all run TPS's, yet that car turns TC and SC on after 100ft. Scary stuff, i don't want that to happen because of a TPS failure.....
Just concerned and wondering what others have found out.
I have 8 BBS wheels all with TPS. I bought them at different times as well as the TPS.
At first they worked perfectly when I had my first set of BBS with TPS from the same supplier.
Latest news; I will go and look at the inside of 2 of my rear wheels from different batches.
I've been driving around the last 2 days on my track wheels. 1 TPS never worked and it is the only one of my last batch. I ordered those TPS seperately.
So tomorrow morning I am going to find out if I got different TPS and if so switch tires and start out at Barber with all the same TPS on my set. Hopefully the TPS are just wrong on the second set and I can replace them. Maybe I will put the other set on the last session to see if they work or not..
1. I think I like my feature where when it gives a flat tire warning for then the TPS stops working (Just click away), but turns on the TC and SC when the tire actually is flat. Real flat, not just low I guess. Again, I am not sure because it happened only once and I was real busy not crashing.
2. I think that this feature as become an issue on another GT3 at Orbit that does not at all run TPS's, yet that car turns TC and SC on after 100ft. Scary stuff, i don't want that to happen because of a TPS failure.....
Just concerned and wondering what others have found out.
I have 8 BBS wheels all with TPS. I bought them at different times as well as the TPS.
At first they worked perfectly when I had my first set of BBS with TPS from the same supplier.
Latest news; I will go and look at the inside of 2 of my rear wheels from different batches.
I've been driving around the last 2 days on my track wheels. 1 TPS never worked and it is the only one of my last batch. I ordered those TPS seperately.
So tomorrow morning I am going to find out if I got different TPS and if so switch tires and start out at Barber with all the same TPS on my set. Hopefully the TPS are just wrong on the second set and I can replace them. Maybe I will put the other set on the last session to see if they work or not..
03-02-2011, 04:10 PM
#34
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Peter how on earth a car without the sensors would know it had a flat tire to turn the electronic aids back on.
It is not possible.
About your car that has the TPS again I am skeptical that the electronics turned on automatically after a completely flat tyre was noticed.
I looked in the TI and manual and there is no mention there..
It is not possible.
About your car that has the TPS again I am skeptical that the electronics turned on automatically after a completely flat tyre was noticed.
I looked in the TI and manual and there is no mention there..
03-02-2011, 04:20 PM
#35
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Thread Starter
Sorry about the unclear posts. Just that I know of only these 2 instances where the system turns itself on, so I wanted to posted about both.
MY car had sensors. I guess that is my question. I understand my problem and I assumed that the system "loses contact and gives a flat tire warning" But I guess that even when you get -- instead of a PSI number, it is still sensing info and still knows when to turn on TC and SC.
If you are right and no one else observed this maybe it was a coincedense that it turned itself back on when I got a flat tire.. I do for sure know that it was of, I noticed that it was on, I pushed the buttons to defeat again and in the same lap I had a flat tire. It never turned itself on at any time.
The other car had no sensors ever and for a unknown reason also turns on TC and SC. every time after 100ft. Maybe unrelated issues? Maybe the same and mine just happened when i had a flat tire.. Just wondering..
Peter how on earth a car without the sensors would know it had a flat tire to turn the electronic aids back on. It is not possible.
If you are right and no one else observed this maybe it was a coincedense that it turned itself back on when I got a flat tire.. I do for sure know that it was of, I noticed that it was on, I pushed the buttons to defeat again and in the same lap I had a flat tire. It never turned itself on at any time.
The other car had no sensors ever and for a unknown reason also turns on TC and SC. every time after 100ft. Maybe unrelated issues? Maybe the same and mine just happened when i had a flat tire.. Just wondering..
03-02-2011, 04:28 PM
#38
Rennlist Member
Peter how on earth a car without the sensors would know it had a flat tire to turn the electronic aids back on.
It is not possible.
About your car that has the TPS again I am skeptical that the electronics turned on automatically after a completely flat tyre was noticed.
I looked in the TI and manual and there is no mention there..
It is not possible.
About your car that has the TPS again I am skeptical that the electronics turned on automatically after a completely flat tyre was noticed.
I looked in the TI and manual and there is no mention there..
Porsche Psychic Stability Management; the JCU (Jedi Control Unit) detected a disturbance in the force caused by the future failure of the tyre and the subsequent demise of the driver against a big hard concrete thing and turned SC+TC back on ... viola ...
03-02-2011, 04:29 PM
#39
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Ok ok I will try one more time, for the one in a million that this really is the norm.
Let's forget TPS for a moment since the same thing happened in a car without sensors, we can rule it out.
The only other plausible explanation I can think is that the ABS rotation sensors notice a great difference between one wheel and the other or between the two axles.
Since a flat tire is smaller in diameter than the inflated one maybe it triggers the automatic on for the aids instead of just throwing an ABS fault.
How is that? Will you sleep tonight?
Let's forget TPS for a moment since the same thing happened in a car without sensors, we can rule it out.
The only other plausible explanation I can think is that the ABS rotation sensors notice a great difference between one wheel and the other or between the two axles.
Since a flat tire is smaller in diameter than the inflated one maybe it triggers the automatic on for the aids instead of just throwing an ABS fault.
How is that? Will you sleep tonight?
03-02-2011, 04:30 PM
#40
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^ This would be my plan B. : )
03-02-2011, 04:39 PM
#41
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Ok ok I will try one more time, for the one in a million that this really is the norm.
Let's forget TPS for a moment since the same thing happened in a car without sensors, we can rule it out.
The only other plausible explanation I can think is that the ABS rotation sensors notice a great difference between one wheel and the other or between the two axles.
Since a flat out tire is smaller in diameter than the inflated one maybe it triggers the automatic on for the aids instead of just throwing an ABS fault.
How is that? Will you sleep tonight?
Let's forget TPS for a moment since the same thing happened in a car without sensors, we can rule it out.
The only other plausible explanation I can think is that the ABS rotation sensors notice a great difference between one wheel and the other or between the two axles.
Since a flat out tire is smaller in diameter than the inflated one maybe it triggers the automatic on for the aids instead of just throwing an ABS fault.
How is that? Will you sleep tonight?
03-02-2011, 04:40 PM
#42
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Thread Starter
The only other plausible explanation I can think is that the ABS rotation sensors notice a great difference between one wheel and the other or between the two axles.
Since a flat tire is smaller in diameter than the inflated one maybe it triggers the automatic on for the aids instead of just throwing an ABS fault.
Since a flat tire is smaller in diameter than the inflated one maybe it triggers the automatic on for the aids instead of just throwing an ABS fault.
How is that? Will you sleep tonight?
03-02-2011, 05:56 PM
#45
Rennlist Member
from doing what exactly? - disengaging your SC+TC??? 
Dont you wish disengaging SC+TC was a similar process to the one Sigourney Weaver used to self-destruct the Nostromo in "Alien" ....
"5 minutes to SC+TC disegagement ... boing!" ... then jets of steam appear from everywhere and lots of amber flashing lights start spinning ...
can you tell I am bored today ...
Dont you wish disengaging SC+TC was a similar process to the one Sigourney Weaver used to self-destruct the Nostromo in "Alien" ....
"5 minutes to SC+TC disegagement ... boing!" ... then jets of steam appear from everywhere and lots of amber flashing lights start spinning ...
can you tell I am bored today ...